package com.sky.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.crypto.digest.DigestUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.EmployeeService;
import com.sky.utils.ResultUtil;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.Objects;

@Service
@RequiredArgsConstructor
@Slf4j
public class EmployeeServiceImpl extends ServiceImpl<EmployeeMapper, Employee> implements EmployeeService {

    private final EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    @Override
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        //进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (Objects.equals(employee.getStatus(), StatusConstant.DISABLE)) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public Result save(EmployeeDTO employeeDTO) {
        Employee employee = BeanUtil.copyProperties(employeeDTO, Employee.class);
        employee.setStatus(StatusConstant.ENABLE);
        // 设置默认密码
        employee.setPassword(DigestUtil.md5Hex(PasswordConstant.DEFAULT_PASSWORD));
        // 需要改为当前登录用户的id
//        employee.setCreateUser(BaseContext.getCurrentId());
//        employee.setUpdateUser(BaseContext.getCurrentId());
        boolean res = super.save(employee);
        return ResultUtil.getResult(res);
    }

    @Override
    public Result<PageResult> pageQuery(EmployeePageQueryDTO pageQueryDTO) {
        long pageSize = pageQueryDTO.getPageSize();
        long page = pageQueryDTO.getPage();
        String name = pageQueryDTO.getName();
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.like(!StrUtil.isBlank(name), Employee::getName, name)
                .orderByDesc(Employee::getCreateTime);
        log.info("queryWrapper.getCustomSqlSegment() = {}", queryWrapper.getCustomSqlSegment());
        Page<Employee> pages = super.page(Page.of(page, pageSize), queryWrapper);
        log.info("pageRecords: {}", pages.getRecords());
        return Result.success(new PageResult(pages.getTotal(), pages.getRecords()));
    }

    @Override
    public Result startOrStop(Integer status, Long id) {
        boolean res = super.updateById(Employee.builder().status(status).id(id).build());
        return ResultUtil.getResult(res);
    }

    @Override
    public Result<Employee> getBydId(Long id) {
        Employee emp = super.getById(id);
        emp.setPassword("******");
        return Result.success(emp);
    }

    @Override
    public Result update(EmployeeDTO dto) {
        Employee employee = BeanUtil.copyProperties(dto, Employee.class);
        boolean res = super.updateById(employee);
        return ResultUtil.getResult(res);
    }
}
